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Buses
A bus, or computer universal switch, is essential for data transfer within a computer or between more than one. We'll take a look at topics like PCI, SCSI, USB Ports and serial ports. See more »
what's inside: computer hardware
From USB connectors to motherboards, the HowStuffWorks Computer Hardware Channel will help you find explanations, reviews, videos and prices for the parts you need.
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CPU
CPU is a well-known acronym in the computing world, but what is in them? Learn more about CPUs, including the differences between Pentium and Celeron processors, or how graphics cards work. See more »
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Desktops
This section focuses on desktop computers and their attributes. Learn about PCs, DNA computers, Internet TV and even how to build a computer. See more »
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Hard Drives & Disks
In the Hard Drives & Disks section, we explore how they work, what it means when your hard drive crashes and how to add a hard drive to your computer. See more »
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Hardware Basics
Hardware Basics offers tips and tricks for good computer upkeep and explains things like "What does Alt+F do?" or "What are the different kinds of computers?" See more »
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Networking
Computer networking is the engineering that creates communication between computers and other devices. Learn about ethernet, LAN, routers, modems and home networking. See more »
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Memory
Memory refers to the amount of storage you have in your computer. We'll explore topics like RAM, caching and virtual memory. See more »
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Other Hardware
How do OLEDs work? Will the $100 laptop save the developing world? Get answers to these and other questions in this section. See more »
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Power Supplies
The performance of your computer relates to its supply of power. Learn how PC power supplies, computer batteries and surge protectors also play an important role in computer upkeep. See more »
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featured articles
What's the worlds fastest supercomputer used for?
MDGrape-3 is the first computer to break the petaflop barrier -- that's 1 quadrillion calculations per second, making it the world's fastest computer. But you’ll be surprised by what it’s used for -- learn what MDGrape-3 can do with a petaflop.
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How Computer Memory Works
Like our brains, computers use both short-term and long-term memory to store data. But the similarities end there. There are several types of computer memory that are arranged based on both technical and financial concerns.
How PCs Work
We've all used one, and most of us are sitting in front of one right now. Curious to know what's going on inside that ever-present PC? Here's your chance to find out -- without prying open your own. Examine a personal computer from boot-up to shut-down.
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